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A Phase IIb Randomised, Double-blind, Placebo-controlled Study to Evaluate the Efficacy, Safety and Tolerability of Co-administration of AZD9550 and AZD6234 in Participants Living With Obesity or Overweight With Co-morbidity (ASCEND)

The purpose of this study is to determine whether treatment with AZD9550 when given in combination with AZD6234 as once weekly subcutaneous (SC) injections is superior to placebo or either agent administered as monotherapy for weight loss in participants living with obesity or overweight with at least one weight-related co-morbidity. - ASCEND

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2051240287
Enrollment
45
Registered
2025-03-07
Start date
2025-04-11
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity or Overweight

Interventions

Experimental: Arm 1: AZD9550 low dose + AZD6234 low dose or placebos Drug: AZD9550 - IMP injected subcutaneous, once weekly. Unit dose strength as per CSP Drug: AZD6234 - IMP injected subcutaneous,

Sponsors

Ageishi Yuji
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: - Participant must be 18 to 75 years of age inclusive. - BMI: or more 30 kg/m2, or or more 27 kg/m2 with at least one weight related comorbidity. - A stable, self-reported body weight for 3 months prior to screening. - Male and female participants: Contraceptive use by males or females should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. - Female participants must have a negative serum pregnancy test at screening and a negative urine pregnancy test at baseline. - Capable of giving signed informed consent.

Exclusion criteria

Exclusion criteria: - History of any clinically important disease or disorder, which, in the opinion of the Investigator, may put the participant at risk. - History or presence of GI, renal, hepatic disease. - Previous or planned bariatric surgery or fitting of a weight loss device. - Obesity induced by endocrine disorders such as Cushing's syndrome, insulinoma or Prader-Willi syndrome. - History of T1DM or T2DM or symptoms indicative of insulinopenia or poor glucose control. - HbA1c or more 6.5% (48 mmol/mol), fasting serum glucose or more 126 mg/dL (7.0 mmol/L) or random glucose or more 200 mg/dL (11.1 mmol/L). - Significant gastric and hepatobiliary disease. - History of acute or chronic pancreatitis or pancreatic amylase or lipase > 2 x ULN at screening. - History of psychosis or bipolar disorder. - History of major depressive disorder within the 2 years prior to screening or depression. - Treatment with a GLP1 containing preparation, either as part of treatment or while participating in another clinical study within the 3 months or 5 half-lives of the drug prior to screening. - Vulnerable populations

Design outcomes

Primary

MeasureTime frame
- Percent change in body weight from baseline after 36 weeks of treatment To determine whether treatment with AZD9550 and AZD6234 in combination is superior to placebo for weight loss [Time Frame: 36 weeks] - Weight loss or more 5% from baseline after 36 weeks of treatment To assess the effect of treatment with AZD9550 and AZD6234 in combination vs placebo on the proportion of participants with weight loss or more 5%. [Time Frame: 36 weeks]

Countries

Australia, Canada, Germany, Japan, Taiwan, United Kingdom, United States of America

Contacts

Public ContactYuji Ageishi

Astrazeneka K.K

RD-clinical-information-Japan@astrazeneca.com+81-6-4802-3533

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026